US1792902A - Portable electric flash light - Google Patents

Portable electric flash light Download PDF

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Publication number
US1792902A
US1792902A US338761A US33876129A US1792902A US 1792902 A US1792902 A US 1792902A US 338761 A US338761 A US 338761A US 33876129 A US33876129 A US 33876129A US 1792902 A US1792902 A US 1792902A
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Prior art keywords
lamp
holder
head
battery
slot
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Expired - Lifetime
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US338761A
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Daniel B Haines
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/04—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of a light source housing portion adjustably fixed to the remainder of the device
    • F21L4/045—Pocket lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L2/00—Systems of electric lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing

Definitions

  • This invention relates to new and useful ing a movable reflector support and lamp carrier which will be easily adjustedto throw or project the light at a variety oi angles.
  • Another object is to provide a flashlight having an adjustable lamp holder and cartridge or battery holder so connected that there is no relative vibration between them.
  • a battery holder having a substantially semispherical head which is slotted and adapt ed to embrace and hold in position a similarly shaped lamp and reflector'holder.
  • Guides are formed in the cap and the lamp holder to limit the movement of the lamp and its reflector and also to reduce relative vibration between the lamp holder and the battery holder or magazine.
  • Figure 1 is a perspective View of myimproved flashlight.
  • Figure 2 is a part sectional view of the flashlight showing my improved cap and lamp holder in assembled relation.
  • Figure 3 is an end view taken on the line 33 Figure 2.
  • Figure 4 is a part sectional view taken on the line 1-4 Figure 2.
  • Figure 5 is a part sectional view taken on the line 5-5 Figure 2.
  • 11 designates the cylindrical holder which is adapted to receive the batterles 12 one of which is shown in Figure 2.
  • the bat-' teries are held against each other with the uppermost battery making contact with the terminal 13 through the action of the cap 14.
  • the usual sliding switch 15 is employed.
  • the above mentioned features are common to practically all types of flashlights.
  • My improvement lies in the lamp holder'and the means for attaching it to the battery holder so that it can be adjusted to project the rays of the lamp in the desired direction.
  • the end 16 of the battery holder is provided with a detachable nipple 16a which flares outwardly to i orm a socket 17 which engages with the substantially semi-spherical bearing member or head 18.
  • the end or socket is soldered or otherwisesecured to the member 18.
  • An internal groove 19 is formed on one side of the member 18 and a slot 20 formed on the other'side.
  • *Rotatably mounted within the meniberlS is a similarly shaped mcmher 21 having an external ridge 22 which i'its into the internal groove 19 and in the slot 20.
  • the metallic bushing23a Secured to the periphery of the semi-spherical member 21 is the metallic bushing23a internally threaded to receive the insulating bush 23 within which is mounted the internally threaded metallic adapter 24'adapted to engage with the neck 25 ofthe lamp 26.
  • the metallic adapter is electrically connected to the bar 33 by meansv of thefwire'27 and said bar'forms a contact withthe switch by any suitable means.
  • the lamp terminal 28 contacts with an electrical conductor 29 mounted on a bar 30 extending diametrically within the member 21.
  • the conductor 29 is connected to a terminal 13 by means of the Wire 32.
  • the terminal 13 is secured to a bar 33 extending diametrically across theinterior of the end 16 of the battery holder.
  • a reflector 24a is held in place by the bushing 23a.
  • The-reflector is adapted to project the light from the lamp in the desired direction.
  • the substantially semi-spherical lamp holder andhead form a ball and socket connection which prevents relative vibration between the members and alsoprcvides a goodwearing surface.
  • the slot is so constructed that'the relative movement between the head the lamp holder is substantially and in the directlon of the slot, asshown in dotted lines in Figure 2.
  • the guiding groove and ridges limit the movement of the lamn.
  • Flexible connections between the switch and the lamp and also between the lamp and the battery terminal allow free movement of the moving parts of the flashlight.
  • the device is robust and simple in construction and can be used to direct the light to any desired angle.
  • a flashlight a battery casing, a substantially semi-spherical head secured to one end thereof, semi-spherical lamp holder fitted into and movable within the head, eoacting projections and grooves formed respectively in the holder and head to form a guide for the relative movement thereof, and a lamp secured to the holder and projecting through a slot in the head, said slot being adapted to limit the movement of the head, said lamp being insulated from the holder.
  • a flashlight a battery casing, batteries therein, a switch in the casing, a substantially semi-cylindrical head secured thereto, said head having a groove and a slot formed therein, a lamp holder of semi spherical shape fitting into the holder and movable therein, said holder having a ridge which fits into the groove and the slot, a lamp secured to and insulated from the holder and projecting through the slot in the head, said slot being adapted to limit the movement of the lamp and flexible electrical connections between the battery and the lamp and between the lamp and the switch.
  • a flashlight a battery casing, batteries therein, a switch in said casing, a substantially semi-spherical head secured to one end of the casing, said head having a guide formed therein, a lamp holder of semi-spherical shape fitting into and movable within the head, said holder having a ridge fitting into said guide, a lamp secured to and insulated from the holder and passing through a slot in the head, a reflector for said lamp, flexible electrical connections to the battery and the switch from the lamn and means for insulating the head.
  • a flashlight In a flashlight, a battery casing, a substantially semi-spherical head secured thereto, a semi-spherical lamp holder fitting into the head and adjustable therein, a semi-circular lamp reflector, an adapter joining the lamp holder and reflector, and a lamp member mounted within said adapter.
  • a device wherein a bar member is mounted diametrically of my hand.

Description

Feb. 17, 1931. D. 3. HAINES 1,792,902
PORTABLE ELECTRIC FLASHLIGHT Filed Feb. 9, 1929 INVEN TOR DANIELBJIAINES ATTORNEY Patented Feb. 17, I931 ran igazeaz DANIEL B. HAINES, SF MONTH-EAL, QUEBEC, CANADA roaraetn unseen-re rrnsn LIGHT Application filed Februarygl 1829. Serial No. 338.761.
This invention relates to new and useful ing a movable reflector support and lamp carrier which will be easily adjustedto throw or project the light at a variety oi angles.
with respect to the longitudinal axisofthe holder.
Another object is to provide a flashlight having an adjustable lamp holder and cartridge or battery holder so connected that there is no relative vibration between them.
According to my invention, 1 provide a battery holder having a substantially semispherical head which is slotted and adapt ed to embrace and hold in position a similarly shaped lamp and reflector'holder. Guides are formed in the cap and the lamp holder to limit the movement of the lamp and its reflector and also to reduce relative vibration between the lamp holder and the battery holder or magazine.
In the drawings which illustrate my invention:
Figure 1 is a perspective View of myimproved flashlight.
Figure 2 is a part sectional view of the flashlight showing my improved cap and lamp holder in assembled relation.
Figure 3 is an end view taken on the line 33 Figure 2.
Figure 4: is a part sectional view taken on the line 1-4 Figure 2.
Figure 5 is a part sectional view taken on the line 5-5 Figure 2.
Referring more particularly to the drawings, 11 designates the cylindrical holder which is adapted to receive the batterles 12 one of which is shown in Figure 2. The bat-' teries are held against each other with the uppermost battery making contact with the terminal 13 through the action of the cap 14. The usual sliding switch 15 is employed. The above mentioned features are common to practically all types of flashlights. My improvement lies in the lamp holder'and the means for attaching it to the battery holder so that it can be adjusted to project the rays of the lamp in the desired direction.
The end 16 of the battery holder is provided with a detachable nipple 16a which flares outwardly to i orm a socket 17 which engages with the substantially semi-spherical bearing member or head 18. The end or socket is soldered or otherwisesecured to the member 18. An internal groove 19 is formed on one side of the member 18 and a slot 20 formed on the other'side. *Rotatably mounted within the meniberlS is a similarly shaped mcmher 21 having an external ridge 22 which i'its into the internal groove 19 and in the slot 20. Secured to the periphery of the semi-spherical member 21 is the metallic bushing23a internally threaded to receive the insulating bush 23 within which is mounted the internally threaded metallic adapter 24'adapted to engage with the neck 25 ofthe lamp 26. The metallic adapter is electrically connected to the bar 33 by meansv of thefwire'27 and said bar'forms a contact withthe switch by any suitable means. The lamp terminal 28 contacts with an electrical conductor 29 mounted on a bar 30 extending diametrically within the member 21. The conductor 29 is connected to a terminal 13 by means of the Wire 32. The terminal 13 is secured to a bar 33 extending diametrically across theinterior of the end 16 of the battery holder. A reflector 24a is held in place by the bushing 23a. The-reflector is adapted to project the light from the lamp in the desired direction.
In operation, the substantially semi-spherical lamp holder andhead form a ball and socket connection which prevents relative vibration between the members and alsoprcvides a goodwearing surface. The slot is so constructed that'the relative movement between the head the lamp holder is substantially and in the directlon of the slot, asshown in dotted lines in Figure 2.
The guiding groove and ridges limit the movement of the lamn. Flexible connections between the switch and the lamp and also between the lamp and the battery terminal allow free movement of the moving parts of the flashlight. By providing a direct electrieal connection between the lamp bushing and the switch instead of using the casing as the connection, allows the lamp to be placed anywhere without completin the lamp circuit as is the case in many of the flash-lights now manufactured.
The device is robust and simple in construction and can be used to direct the light to any desired angle.
lVhat I claim is:
1. In a flashlight, a battery casing, a substantially semi-spherical head secured to one end thereof, semi-spherical lamp holder fitted into and movable within the head, eoacting projections and grooves formed respectively in the holder and head to form a guide for the relative movement thereof, and a lamp secured to the holder and projecting through a slot in the head, said slot being adapted to limit the movement of the head, said lamp being insulated from the holder.
2. In a flashlight, a battery casing, batteries therein, a switch in the casing, a substantially semi-cylindrical head secured thereto, said head having a groove and a slot formed therein, a lamp holder of semi spherical shape fitting into the holder and movable therein, said holder having a ridge which fits into the groove and the slot, a lamp secured to and insulated from the holder and projecting through the slot in the head, said slot being adapted to limit the movement of the lamp and flexible electrical connections between the battery and the lamp and between the lamp and the switch.
3. In a flashlight, a battery casing, batteries therein, a switch in said casing, a substantially semi-spherical head secured to one end of the casing, said head having a guide formed therein, a lamp holder of semi-spherical shape fitting into and movable within the head, said holder having a ridge fitting into said guide, a lamp secured to and insulated from the holder and passing through a slot in the head, a reflector for said lamp, flexible electrical connections to the battery and the switch from the lamn and means for insulating the head.
t. In a flashlight, a battery casing, a substantially semi-spherical head secured thereto, a semi-spherical lamp holder fitting into the head and adjustable therein, a semi-circular lamp reflector, an adapter joining the lamp holder and reflector, and a lamp member mounted within said adapter.
5. A device according to claim 4 wherein a bar member is mounted diametrically of my hand.
DANIEL B. HAINES.
US338761A 1929-02-09 1929-02-09 Portable electric flash light Expired - Lifetime US1792902A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796516A (en) * 1956-02-16 1957-06-18 Martschik Nikolaus Flashlight
US5339234A (en) * 1993-04-23 1994-08-16 The Genlyte Group Incorporated Lighting fixture with ratcheted swivel socket sliding within slot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796516A (en) * 1956-02-16 1957-06-18 Martschik Nikolaus Flashlight
US5339234A (en) * 1993-04-23 1994-08-16 The Genlyte Group Incorporated Lighting fixture with ratcheted swivel socket sliding within slot

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